Flavius cheney



(No Model.)

F. CHENEY.

I BLAGKBOARD ERASER.

No. 345,830. Patented July 20', 1886.

avazs 726w Afiorneys I UNITED STATES PATENT OFFICE.

FLAVIUS CHENEY, OF SENECA FALLS, NEW YORK, ASSIGNOR TO THE AMERL CAN GLOBE AND SCHOOL SUPPLY COMPANY, OF SAME PLACE.

BLACKBOARD-ERASER.

SPECIFICATION forming part of Letters Patent No. 345,830, dated July 20, 1886.

Application filed December 10. 1885. Serial No. 165,282. (No model.)

To all whom it may concern; 1 erasive material to the handle,as its use makes Be it known that I, FLAVIUS CHENEY, a the eraseralittle firmer than it would be with- 5 citizen of the United States,residing at Seneca out the glue; but the glue maybe entirely dis- Falls, in the county of Seneca and State of pensed with, if preferred. Threads are New York, have invented a new and useful passed throughthe erasivematerial,as shown, Improvementin Black board-Erasers,of which which sews the material securely together and the following is a specification, reference being forms of it a compact mass. 50

had to the accompanying drawings. To the outer edge of the erasive material is My invention relates to an improvement in sewed a strip, D. This strip is turned over IO blackboard erasers; and it consists in an eraser the edge of the handle and is secured thereto in which the er'asive material is sewed together by means of tacks, as shown in Figs. 4 and 5; and provided with an outside strip, which is butany other suit-ablemeans may beemployed, 5 bent down over the edge of the handle and seif preferred. cured thereto, whereby a durable, cheap, and By sewing the erasive material together it simple eraser is produced, as will be more is formed into a compact mass of great durafully set forth hereinafter. bility, and by securing an outside strip to the Heretofore in the manufacture of blackerasive material and securing said strip to the to board-erasers it has been the custom to secure edges of the handle the erasive material is very the erasive material to the handle by means firmly and permanently secured thereto, and

of glue. This method of securing the erasive is not affected by heat or moisture.

material to the handle is objectionable,for the This mode of manufacture enables me to reason that the glue becomes weakened if the produce erasers of great durability. eraser becomes clamp or wet and is exposed to Having thus described my invention, l heat, and the erasive material soon becomes claim 25 loosened from the handle, and thus renders 1. An eraser composed of the erasive matethe eraser worthless. This objection it is the rial, the handle, and the outsidest-rip secured object of my invention to overcome. to the erasive material and embracing the In the accompanying drawings, Figure 1 is handle and secured thereto, for securing the a bottom plan view illustrating the first stage erasive material to the handle, substantially 30 in the manufacture of my eraser. Fig. 2 is a as described.

side elevation of one of my erasers in the sec- 2. The combination, with the erasive mateond stage of manufacture. Fig. 3 is a transrial, of the strip D, secured along one of its Verse sectional view of the same. Fig. 4 is a edges to the same, and having its other or free side elevation of one of my erasers when com edge adapted to be turned back and secured 3 5 pleted. Fig. 5 is a transverse sectional view to the handle, as set forth.

of the same. In testimony that I claim the foregoing as A represents the erasive material, which is my own I have hereto affixed my signature in here shown as consisting of a strip of cloth arpresence of two witnesses.

ran ed in an elon ated coil. T 40 B represents tie handle, which may be FLAVIUS OHELEY' formed of wood or any other suitable mate- Witnesses: rial, and is preferably of the form here shown. 1?. VAN KLEEOK,

In practice I prefer to glue one side of the JOHN K. GILMORE. 

